Diagnostic Test
WARNING: This page is about a different car, the 2013 Dodge Avenger and 2013 Chrysler 200. However, it is still accessible from the selected car via links, so may be relevant.
- VERIFY DIAGNOSTIC TROUBLE CODE (DTC) IS ACTIVE NOTE:
Make sure the IOD fuse is installed and battery voltage is between 10 and 16 volts before proceeding.
- With the scan tool, read active HVAC DTCs.
Is this DTC active?
Yes
- Refer to DIAGNOSIS AND TESTING and perform the U0155-Lost Communication with Cluster/CCN diagnostic procedure.
No
- Refer to DIAGNOSIS AND TESTING and perform the Stored Lost Communication DTCs diagnostic procedure.
- With the scan tool, read active HVAC DTCs.